ColorAdapt

Helps people with color vision deficiencies tell colors apart on the web by adapting page colors and adding non-color cues.

ColorAdapt helps people with color vision deficiencies read and tell apart the colors used on web pages. Pick the color-vision profile that matches you (protanopia, protanomaly, deuteranopia, deuteranomaly, tritanopia, tritanomaly, achromatopsia or a custom profile). ColorAdapt looks at the colors on the page you are viewing, estimates which text and interface colors are hard to tell apart for that profile, and changes only those colors by the smallest amount that helps. Turn it off and the page returns exactly as the site made it. What it does • Adapts text and interface colors that are hard to distinguish for your profile, leaving the rest of the page alone. • Adds small non-color cues where color alone carries a state, for • Adapts text and interface colors that are hard to distinguish for your profile, leaving the rest of the page alone. • Adds small non-color cues where color alone carries a state, for example a check or warning mark next to a success or error message, when the page's own markup makes the state clear. • Helps tell chart series apart with line styles, markers and patterns in supported SVG charts. • Adapts single-color icons (inline SVG, and optional small image icons). • Developer audit: a read-only report of color-dependent problems on a page, with the evidence, that you can export. • Optional, off by default: AI-assisted review of audit findings that need a human decision, using a language model running on your own computer. Your privacy • By default ColorAdapt sends no page data to external services. No telemetry, no analytics, no ads, no account. • Settings are saved in your browser. • The optional AI-assisted developer review is disabled by default. When you enable and run it, ColorAdapt may send a small sanitized semantic context to a local loopback AI runtime on your computer (for example Ollama). It has no cloud fallback and needs a separately installed local runtime. Please note • Color adaptation is an estimate based on common color-vision models; it is not a medical tool and cannot restore color vision or replace professional advice. • Complex graphics and some pages may remain unchanged, and some cases are left for manual review. ColorAdapt does not make a page WCAG-compliant and is not a conformance checker. • The interface is currently in English. • ColorAdapt needs access to the websites you use in order to adapt them.